Source : Webster's Revised Unabridged Dictionary (1913)

Sextuple \Sex"tu*ple\, a. [Formed (in imitation of quadruple)
   fr. L. sextus sixth: cf. F. sextuple.]
   1. Six times as much; sixfold.

   2. (Mus.) Divisible by six; having six beats; as, sixtuple
      measure.

Source : WordNet®

sextuple
     adj : having six units or components [syn: {sixfold}]